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-rw-r--r--rt/tst-mqueue3.c238
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diff --git a/rt/tst-mqueue3.c b/rt/tst-mqueue3.c
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+/* Test SIGEV_THREAD handling for POSIX message queues.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+#include <signal.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#if _POSIX_THREADS
+# include <pthread.h>
+
+static pid_t pid;
+static mqd_t m;
+static const char message[] = "hello";
+
+# define MAXMSG 10
+# define MSGSIZE 10
+# define UNIQUE 42
+
+
+static void
+fct (union sigval s)
+{
+ /* Put the mq in non-blocking mode. */
+ struct mq_attr attr;
+ if (mq_getattr (m, &attr) != 0)
+ {
+ printf ("%s: mq_getattr failed: %m\n", __FUNCTION__);
+ exit (1);
+ }
+ attr.mq_flags |= O_NONBLOCK;
+ if (mq_setattr (m, &attr, NULL) != 0)
+ {
+ printf ("%s: mq_setattr failed: %m\n", __FUNCTION__);
+ exit (1);
+ }
+
+ /* Check the values. */
+ if (attr.mq_maxmsg != MAXMSG)
+ {
+ printf ("%s: mq_maxmsg wrong: is %ld, expecte %d\n",
+ __FUNCTION__, attr.mq_maxmsg, MAXMSG);
+ exit (1);
+ }
+ if (attr.mq_msgsize != MAXMSG)
+ {
+ printf ("%s: mq_msgsize wrong: is %ld, expecte %d\n",
+ __FUNCTION__, attr.mq_msgsize, MSGSIZE);
+ exit (1);
+ }
+
+ /* Read the message. */
+ char buf[attr.mq_msgsize];
+ ssize_t n = TEMP_FAILURE_RETRY (mq_receive (m, buf, attr.mq_msgsize, NULL));
+ if (n != sizeof (message))
+ {
+ printf ("%s: length of message wrong: is %zd, expected %zu\n",
+ __FUNCTION__, n, sizeof (message));
+ exit (1);
+ }
+ if (memcmp (buf, message, sizeof (message)) != 0)
+ {
+ printf ("%s: message wrong: is \"%s\", expected \"%s\"\n",
+ __FUNCTION__, buf, message);
+ exit (1);
+ }
+
+ exit (UNIQUE);
+}
+
+
+int
+do_test (void)
+{
+ char tmpfname[] = "/tmp/tst-mqueue3-barrier.XXXXXX";
+ int fd = mkstemp (tmpfname);
+ if (fd == -1)
+ {
+ printf ("cannot open temporary file: %m\n");
+ return 1;
+ }
+
+ /* Make sure it is always removed. */
+ unlink (tmpfname);
+
+ /* Create one page of data. */
+ size_t ps = sysconf (_SC_PAGESIZE);
+ char data[ps];
+ memset (data, '\0', ps);
+
+ /* Write the data to the file. */
+ if (write (fd, data, ps) != (ssize_t) ps)
+ {
+ puts ("short write");
+ return 1;
+ }
+
+ void *mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ if (mem == MAP_FAILED)
+ {
+ printf ("mmap failed: %m\n");
+ return 1;
+ }
+
+ pthread_barrier_t *b;
+ b = (pthread_barrier_t *) (((uintptr_t) mem + __alignof (pthread_barrier_t))
+ & ~(__alignof (pthread_barrier_t) - 1));
+
+ pthread_barrierattr_t a;
+ if (pthread_barrierattr_init (&a) != 0)
+ {
+ puts ("barrierattr_init failed");
+ return 1;
+ }
+
+ if (pthread_barrierattr_setpshared (&a, PTHREAD_PROCESS_SHARED) != 0)
+ {
+ puts ("barrierattr_setpshared failed, could not test");
+ return 0;
+ }
+
+ if (pthread_barrier_init (b, &a, 2) != 0)
+ {
+ puts ("barrier_init failed");
+ return 1;
+ }
+
+ if (pthread_barrierattr_destroy (&a) != 0)
+ {
+ puts ("barrierattr_destroy failed");
+ return 1;
+ }
+
+ /* Name for the message queue. */
+ char mqname[sizeof ("/tst-mqueue3-") + 3 * sizeof (pid_t)];
+ snprintf (mqname, sizeof (mqname) - 1, "/tst-mqueue3-%ld",
+ (long int) getpid ());
+
+ /* Create the message queue. */
+ struct mq_attr attr = { .mq_maxmsg = MAXMSG, .mq_msgsize = MSGSIZE };
+ m = mq_open (mqname, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+ if (m == -1)
+ {
+ puts ("mq_open failed");
+ return 1;
+ }
+
+ /* Unlink the message queue right away. */
+ if (mq_unlink (mqname) != 0)
+ {
+ puts ("mq_unlink failed");
+ return 1;
+ }
+
+ pid = fork ();
+ if (pid == -1)
+ {
+ puts ("fork failed");
+ return 1;
+ }
+ if (pid == 0)
+ {
+ /* Request notification via thread. */
+ struct sigevent ev;
+ ev.sigev_notify = SIGEV_THREAD;
+ ev.sigev_notify_function = fct;
+ ev.sigev_value.sival_ptr = NULL;
+ ev.sigev_notify_attributes = NULL;
+
+ /* Tell the kernel. */
+ if (mq_notify (m,&ev) != 0)
+ {
+ puts ("mq_notify failed");
+ exit (1);
+ }
+
+ /* Tell the parent we are ready. */
+ (void) pthread_barrier_wait (b);
+
+ /* Make sure the process goes away eventually. */
+ alarm (10);
+
+ /* Do nothing forever. */
+ while (1)
+ pause ();
+ }
+
+ /* Wait for the child process to register to notification method. */
+ (void) pthread_barrier_wait (b);
+
+ /* Send the message. */
+ if (mq_send (m, message, sizeof (message), 1) != 0)
+ {
+ kill (pid, SIGKILL);
+ puts ("mq_send failed");
+ return 1;
+ }
+
+ int r;
+ if (TEMP_FAILURE_RETRY (waitpid (pid, &r, 0)) != pid)
+ {
+ kill (pid, SIGKILL);
+ puts ("waitpid failed");
+ return 1;
+ }
+
+ return WIFEXITED (r) && WEXITSTATUS (r) == UNIQUE ? 0 : 1;
+}
+# define TEST_FUNCTION do_test ()
+#else
+# define TEST_FUNCTION 0
+#endif
+
+#include "../test-skeleton.c"